Miks Antonin, Novak Jiri, Novak Pavel
Czech Technical University in Prague, Faculty of Civil Engineering, Department of Physics, Thakurova 7, 16629 Prague, Czech Republic.
Opt Express. 2013 Jul 29;21(15):18225-35. doi: 10.1364/OE.21.018225.
In this work a detailed analysis of the problem of imaging of objects lying in the plane tilted with respect to the optical axis of the rotationally symmetrical optical system is performed by means of geometrical optics theory. It is shown that the fulfillment of the so called Scheimpflug condition (Scheimpflug rule) does not guarantee the sharp image of the object as it is usually declared because of the fact that due to the dependence of aberrations of real optical systems on the object distance the image becomes blurred. The f-number of a given optical system also varies with the object distance. It is shown the influence of above mentioned effects on the accuracy of the laser triangulation sensors measurements. A detailed analysis of laser triangulation sensors, based on geometrical optics theory, is performed and relations for the calculation of measurement errors and construction parameters of laser triangulation sensors are derived.
在这项工作中，借助几何光学理论对位于相对于旋转对称光学系统光轴倾斜平面内的物体成像问题进行了详细分析。结果表明，所谓的申夫吕格条件（申夫吕格规则）的满足并不像通常宣称的那样能保证物体的清晰图像，这是因为实际光学系统的像差依赖于物距，导致图像变得模糊。给定光学系统的光圈数也随物距而变化。展示了上述效应对激光三角测量传感器测量精度的影响。基于几何光学理论对激光三角测量传感器进行了详细分析，并推导了激光三角测量传感器测量误差计算和结构参数的关系式。
